What is Bearing: Definition and 184 Discussions

In navigation, bearing is the horizontal angle between the direction of an object and another object, or between it and that of true north.

Absolute bearing refers to the angle between the magnetic north (magnetic bearing) or true north (true bearing) and an object. For example, an object to the East would have an absolute bearing of 90 degrees.
Relative bearing refers to the angle between the craft's forward direction and the location of another object. For example, an object relative bearing of 0 degrees would be dead ahead; an object relative bearing 180 degrees would be behind. Bearings can be measured in mils or degrees.

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  1. R

    Bearing press in process problem

    I am working in a project to design a machine to press in bearing into a part with tolerance ring. IPA (Isopropyl Alcohol) is requested to apply on the tolerance ring before press in the bearing to reduce the hard particle created during the process. However, the machine is jerking during...
  2. D

    Bearing steel that can absorb shocks

    does anybody know of bearing steel that can absorb shocks , and could you help me with its composition and its physical properties like tensile strength, specific gravity, malleability , etc regds
  3. M

    Finding Magnetic Field from a Current Bearing Conductor

    Homework Statement A long, thin conductor carries a current of 8.93 A. At what distance from the conductor is the magnitude of the resulting magnetic field 4.79 × 10−5 T? Answer in units of cm. Homework Equations B= Uo*I*l/(2*pi*d) The Attempt at a Solution i used this...
  4. D

    Ball Bearing Surfaces: Does the Ball Touch Both Races?

    Do the balls in a bearing actually touch both races? If so, how does the thing turn? Won't the balls be moving in different directions at each race, and therefore dragging against one?
  5. R

    Calculate the Mass of a Ball Bearing (Millikan Experiment)

    1. Homework Statement You are given twelve cans (one of which is empty) which are filled with a certain number of ball bearings. Using nothing more than a balance, calculate the mass of a single bearing 2. Homework Equations Total Mass=Mo+n(mo) Where total mass=mass of ball bearings...
  6. C

    Universal joint/ball bearing controlled rotating arm for a furniture fitting

    Universal joint/ball bearing... controlled rotating arm for a furniture fitting Hello forum, I need your help on a furniture project we are developing in the office. its basically a floor standing lamp which needs to have a user regulated rotating arm. We are right now looking at different...
  7. K

    Bearing Failure in Motor-Driven Shaft with 40 kW Load

    I have a problem of bearing failure. A motor drives a shaft thro a flat belt. This shaft is connected to a load of around 40 kw. The shaft has 1309 self aligning ball bearing as floating bearing at the back end of shaft. On the load side there is a bearing 2209 NUP. The bearing inners are locked...
  8. K

    Calculating Force of Bouncing Ball Bearing

    At work I have been given the task of finding force of ball bearing hitting a pick up finger in a ball nut. If you have no idea what that is then to simplify the scenario I am trying to model a ball bearing hitting a steel plate and the force that ball exerts on the plate. Back to physics...
  9. H

    Find a 1/4in Brass Ball Bearing

    i am in need of a brass ball bearing with a bore dia of 1/4inch. can anyone tell me where i could find it?
  10. U

    Unlocking the Mystery of Ball Bearing: Height, Velocity and Position

    The question states: Ball bearing are made by letting spherical drops of molten metal fall inside a tall tower, and they solidify as they fall. a) If a bearing needs 4.0s to solidify, how high must the tower be? b) What is the bearing velocity when it reaches the bottom? c) What...
  11. S

    Spring shooting ball bearing

    I am convinced I have not received enough info to solve this prob. Please help me get started. A small steel ball bearing with a mass of 20.0 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.35 m. Calculated the...
  12. W

    Bearing which rest on the rod and was between rod and ceiling

    Anyone can help me anayst the beariing which rest on the rod and was betweeen rod and ceiling...I am not sure if the reaction is between bearing and rod or ceiling and ball bearing. refer to this link pls
  13. G

    Load bearing structure made of matchsticks

    Homework Statement Ok, i have a small (optional) project, to design a load bearing structure made of matchsticks. The structure must be able to withstand the load a computer monitor (i have a 17" one). Homework Equations Now, the problem i am facing is how would the force (of gravity due to...
  14. A

    Calculating Bearing Temperature with Empirical Cooling Factor

    Dear all I need to calculate bearing Temperature for the shaft rotating of certain rpm. Bearing catalog referred and found that cooling factor is missing to arrive final result. How to find cooling factor?any empherical procedures?standards?sites? If so pl guide me to get the result...
  15. A

    Can Styrofoam Support Heavy Loads?

    Dear All, I have few questions:- Is styrofoam useful to bare heavy material weight? Is it light weight material? Waiting for reply. Thanks in advance.
  16. N

    Calculate the acceleration for a ball bearing

    Calculate the acceleration for a ball bearing between 25cm and 75cm of .4005 sec & .4013 sec and .4022 sec. Lab Help?! Thanks !
  17. M

    Discharge a magnetized bearing

    WE're usign a steel ball bearing for our physics rollercoaster project, and we happened to store the ball ontop of a decently strong magnet over the course of a few nights, and we believe that the ball is magnetized because the ball slows down at parts of our rollercoaster where there is any...
  18. C

    Bearing Load Calculation - Get Assistance Now

    HI all, I am interested in designing a tapered bearing. Can anyone please let me know the parameters to be considered in order to design. I have been given a load acting on the sleeve, and the arae available to fit the bearing. If any useful site which talks about bearing and its...
  19. D

    Moment of Inertia Problem: cylinder pivoting ona bearing

    Homework Statement M, a solid cylinder (M=2.07 kg, R=0.135 m) pivots on a thin, fixed, frictionless bearing. A string wrapped around the cylinder pulls downward with a force F which equals the weight of a 0.570 kg mass. Starting from rest, the mass now moves a distance 0.350 m in a time of...
  20. L

    Finding Direction of Boat Movement: Bearing Calculation

    Homework Statement A boat is moving with constact velocity -1 + 6j. Find the direction in which the boat is moving, giving your answer as a bearing. The Attempt at a Solution http://img483.imageshack.us/img483/2457/bearintgsxk3.jpg Alpha is the bearing I want right? In the mark...
  21. L

    Capacitance calculus of a bearing

    I would like to calculate theoretically the capacitance of a bearing with metallic rings and ceramic spheres (see http://en.wikipedia.org/wiki/Rolling-element_bearing. The expression for a cylindrical capacitor is: (2*pi*eps0*l)/(lnb/a). However, when adding some spherical balls inside the...
  22. A

    Calculating laterel acceleration from change in direction (bearing)

    Hi all, Ive made a car simulator for a uni project, i am now trying to calculate lateral acceleration (Gs) for the car. It models a car going round a track, however the track is made up of a series of straight lines, no curves. curve (type things) are achieved by a series of straight...
  23. S

    A ball bearing is held in a cup on the end of a pivoted rod.

    A ball bearing is held in a cup on the end of a pivoted rod. Weights can be added to the end of the rod opposite to that of the cup. The cup is pulled down and then released. The moving rod hits a stop and the ball bearing is projected out. When carrying out a pilot experiment, I found that...
  24. S

    Trb (tapered Roller Bearing )

    Seek To Know About Tapered Roller Bearing Lubrication Used & Relubrication Period For The 1.5 Ton Three Wheeler's Front Wheel.
  25. A

    Investigating Ball Bearing Roll Down Slope Time

    hey, well I am doing a project and the title is 'investigating how the distnce traveled by a ball bearing rolling down a slope affects time taken' so basically how the distance of travel (independent variable) effects the time taken to reach the end of the ramp. and, the ball starts from rest...
  26. brewnog

    Bearing End Play: Reasons for No Concern

    Can anyone think of any reasons why I should not be concerned about a seemingly large amount of end play in a bearing? The bearing is a twin taper roller bearing with a split inner race. It's carrying a mild, pretty steady axial load, and a moderate, pretty steady radial load, at a moderate...
  27. A

    Bearing failure rating? Simple rev counter?

    Firstly I would like to point out I have absolutely no idea what I am doing and will most likely be blind or dead by tomorrow. But anyway. I've finally finished me first turbo jet engine (from scratch I would like to add and designed myself and dodgy as I am pretty convinced that it won't...
  28. A

    Bearing failure rating? Simple rev counter?

    Firstly I would like to point out I have absolutely no idea what I am doing and will most likely be blind or dead by tomorrow. But anyway. I've finally finished me first turbo jet engine :approve: (from scratch I would like to add and designed myself and dodgy as :biggrin: I am pretty...
  29. Chronos

    Solving Bearing Cage Failure for 5+ Years

    I've worked on this problem for over 5 years without success. A machine I am familiar with has a chronic bearing failure problem. Specifically, the cage disintegrates after about 6 months. The bearing is used in a vibratory application. An eccentrically weight shaft impels a total mass of about...
  30. E

    Can Nanotubes Revolutionize Lubricants and Bearings?

    Dear Folks: The line in this article about testers being " simply unable to create enough friction in the lubricant to produce measurable damage - even when trial durations were increased severely beyond specifications", makes this sound as good as a magnetic bearing. Israel21c Erich
  31. T

    What is the difference between bearing and heading?

    Alright, my teacher has the classic case of here are the sheets go do them, don't ask me questions. I've been good about picking up so far but i have 2 questions right now. 1) m/s^2 does this mean for every 2 seconds it does 1 meter value? I.E. 1/s^2 so does that mean every 2 seconds it goes...
  32. M

    How Does Fluid Viscosity Affect Bearing Wear in Lubricated Systems?

    Is there a way to relate the viscosity of a liquid to the fatigue wear of a bearing. The bearings are lubricated with the flow of liquid through the metering devise. The flow of liquid creates a perpendicular force on a shaft with carbon bearings on each end. Is there a formula that I can use...
  33. S

    Calculating Horizontal Distance of Ball Bearing with Mass 11.0 g

    A small steel ball bearing with a mass of 11.0 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.37 m. Calculate the horizontal distance the ball would travel if the same spring were aimed 30.0 deg from the horizontal...
  34. wolram

    Which Lifter Bearing is Best for Food Industry Machines

    what is best,a machine we use in the food industry, cycles at 30rpm a direct drive cam opperates a lifter that travels 500mm up and down, the machine is washed down every night,there is no particulate matter. so would linear bearings or bushes be best for lifter? "lubrication is minimal"
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